Silicon Graphics CHALLENGE L, User Manual, Page: 98 / 164

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Chapter 5: Having Trouble?
If your CPU has only two microprocessors on board, you should see:
PROCESSOR STATUS
B+
If you receive a processor status message followed by
B+DD
, you have a CPU
with two of its microprocessors disabled. Contact your system administrator
to determine why this was done.
If you receive a processor status message like
B+
-- or
B+XX
, the CPU has
defective microprocessors on board. Make a note of the exact message and
contact your service provider for help.
If the System Hangs
If the system does not make it through step 3 in the power-on process, an
error message will appear and stay on the System Controller’s LCD screen.
A message like
PD CACHE FAILED!
indicates that a serious problem exists.
Make a note of the final message the system displays and contact your
service provider.
The message displayed on the System Controller LCD screen when a
power-on hang occurs can give your service provider valuable information.
System Controller On Functions
Located just above the drive rack, the System Controller LCD and front
panel provides users with information regarding any planned or unplanned
shutdown of the system.
The System Controller monitors incoming air temperature and adjusts fan
speed to compensate. It also monitors system voltages and the backplane
clock. If an unacceptable temperature or voltage condition occurs, the
System Controller will shut down the system.
Another major area the System Controller watches is the boot process. In the
event of an unsuccessful boot, the controller’s LCD panel indicates the
general nature of the failure. A real-time clock resides on the System
Controller, and the exact date and time of any shutdown is recorded.